Drilling machinery



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DRILLING MACHINERY.

APPLICATION FILED SEPT 10. 1917.

W ill .Mz M.

A.-M. SOSA.

DRILLING MACHINERY.

APPLICATION FILED SEPT, 10. 191?.

1,338,752. a ented May 4, 1920.

3 SHEETSSHEET 3- III %2 V917, for.

UNITED STATES PATENT OFFICE.

AUGUSTUS 1V1. SOSA, 0F CINCINNATI, OHIJ, ASSIGNOR TO THE AMERICAN TOOL WORKS COMPANY, OF CINGINNATI, OHIO, A CORPORATION OF OHIO.

DRILLING MACHINERY.

Application filed September 10, 1917.

chinery, of which the following is a speci fication.

My invention ,relates to drilling machinery, and I have exemplified the same as embodied in a radial drilling machine.

In machinery of this character'it is desirable to adjust the point of the drill accurately to the point on the work at which the point of the drill is to enter the work,

This is accomplished by lateral and axial adjustments of the drill-spindle. The ini drill-spindle comprising a manual operating part each side of the drill-spindle, one of said manual operating parts arranged for quick traverse ustments of the drill-spindle, and the other of said manual operating parts arranged for fine lateral adjustments of the drill-spindle.

It is the object of my invention, further, to provide means for laterally and axially adjusting the drill-spindle by manual operating parts respectively at the respective sides of the drill-spindle for imparting to the point of th orill a movement in a direction which is the resultant of the simultaneous adjustment of the drill-spindle in lateral d axial directions.

It is the object of my invention, further, to provide means whereby the fast lateral movements of the drill-spindle may be accomplished by a manual operating part at one side of the drill-spindle or operators position, and the axial adjustments of the Specification of Letters Patent.

Patented May 4, 1920.

Serial No. 190,654.

drill-spindle may be accomplished by means of a manual operating part at the same side of the drill-spindle, the two manual operating parts mentioned being independently operable, so that said two manual operating parts may be manipulated separately by one hand of the operator, and to provide a manual operating part at the other side of the drill-spindle or operators position, operable by the other hand of the I operator, so that the final accurate adjustments of the drill-spindle, both axially and laterally, may be accomplished by simultaneous use of both hands of the operator, by manipulation of manual operating parts at the respective sides of the drill-spindle or operators position, in order to move the point of the drill simultaneously in both directions toward the point on the work at which the point of the drill is to enter.

It is a further object of my invention to mount the devices mentioned on a radially adjustable arm simultaneously movable with. said manual operating parts for conveniently and effectively obtaining the required adjustments; and, further to so arrange the manual manipulating parts that the same may be manipulated by both hands of the operator so positioned that he is able to simultaneously observe the effect of the adjustments being made in order to have complete control of the same and for effecting the same speedily.

The invention will be further readily understood from the following description and claims, and from the drawings, in which latter:

Figure 1 is a front elevation of a drilling machine, embodying my invention.

Fig. 2 is a side elevation of the tool-slide, partly broken away, and artly in section taken on the line 22 of ig. 1.

Fig. 3 is a horizontal section of the toolslide, taken in the plane of the line 3-3 of Fig. 2.

Fig. 4 is a detail section of the feeding mechanism for the drill-spindle, taken on the line l-4 of Fig. 3.

Fig. 5 is a front elevation of my improved device, with parts partly broken away, and partly in axial section in the plane of the line 55 of Fig. 9, the feeding clutch being shown released.

Fig. 6 is a horizontal cross-section taken in the plane of the line 66 of Fig. 5.

Fig. 7 is an' axial section of the speed changing device for the feeding means, taken in the plane of the line 7-7 of Fig. 5.

Fig. 8 is a horizontal sectional detail, taken on the line 8-8 of Fig. 4.

Fig. 9 is a horizontal section of the toolslide and its support, taken in the plane of the line 9-9 of Fig. 2.

Fig. 10 is a vertical section taken on the line 1010 of Fig. 9; and,

Fig. 11 is an enlarged detail of the clamping means between the feeding worm-wheel r and the face-plate, taken on the line 3-3 of Fig. 2. v

The drilling machine, which is exemplified as a radial drilling machine, may comprise a usual base 11 from which a post 12 extends upwardly, an upright column 13 being rotatable about the post in usual manner and arranged to be clamped in ad justed positions by means of a clamp 14. A drill-arm 15 extends from the column, being adjustable up and down on the column by be ing provided with a bearing 16 about the column, a screw-rod 17 having threaded connection with a usual nut in the bearing of the drill-arm and arranged to be rotated in reverse directions from a shaft 18 by suitable gearing in the housing 19 at the top of the column controlled by an operating rod 20 extendlng lengthwise of the column and provided with a suitable hamlle 21, in

any usual or ordinary manner.

The rotatable column 1S rotatable about the post for readlly positioning the drill arm, the clamp 14 being arranged to clamp.

the rotatable column to the base upon proper adjustment being attained.

The base comprises. a table 22 on which the work, exemplified by a casting 25, is arranged to be laid or suitably secured.

A tool-slide 26 supports a drill-spindle 27 and mechanism for rotating and fealing the same, and is adjustable lengtlnvise on the drill-arm by a guideway 29 thereon coacting'with a guide 28 on the drill-arm. The drill-spindle is arranged to receive a suitable drill 30, and has the same fixed thereto in usual manner. the (rill havin entering point 31 in the axial center tliere-' of arranged to enter the work.

'The drill-spindle is arranged to be ro tated in suitable manner, exemplified as accomplished by a shaft 35 extending lengthwise of the drill-arm and operated in suit able or usual manner by an upright shaft 36 receiving motion in usual mannerby gearing in the housing 19, said gearing operated by the shaft 18. The shaft 18 is operated at various speeds by a drive-shaft 37. driving connection between the shafts 36 and 35 is had by means of gearing in a gear cover 38. (See Fig. 1.) V

The.

Bevel-gears 41, 42, are arranged to be selectively operatively connected with the shaft 85, as by means of usual clutches selectively actuated by an operating arm 43, for rotating a bevel-gear 44, in mesh at its opposite sides with the bevel-gears 41 and 42, in opposite directions. The bevel-gear 44 is fast with a gear 45 which meshes with a gear 46 on a shaft 47 journaledin a hearing 48 on the tool-slide. The shaft 47 has a gear 49 fast thereon which meshes with a gear 50 having spline-connection 51 with the drill-spindle for rotating the same.

The drill-spindle is arranged to be moved axially by feeding mechanism exemplified as comprising a rack 55 on a sleeve 56 about the drillspindle, the sleeve being axially movable in a bearing 57 on the tool slide and prevented from turning by a key 58 thereon movable lengthwise in a groove 59 of said bearing. lflnd-thrust bearings 61, 62, cause axial movement of the drill-spindle with the sleeve. A pinion .68 meshes with the rack and is on a shaft 64 fast with a face-plate 65 and a bushing 66 thereon, in which the shaft is received. A worm-wheel 67 has a bearing 68 about the bushingand is in turn rotatable in a bearing 69 in the tool-slide.

The worm-wheel and face-plate have an annular bearing 7 0 between them. The worm-wheel and faceplate are arranged to be clamped together by a clamp 71, when it is desired to cause feeding movement of the drill-spindle by means of the \vori wheel. (See Figs. 3 and 11.) If it is de sired to impart a quick axial adjustment to the drill-spindle, the clamp 71 is released, the face-plate being provided with handles 72 positioned at the front of the tool-slide, for turning the same.

Means are also provided for feeding the tool-spindle axially selectively either by means of power or manual operation, effected by rotation of the worm-wheel, exemplified as accomplished by means of a worm 75 in mesh with the worm-wheel. The worm is fixed to a shaft 76 journaled in a bearing 77 on the tool-slide and having a manual operating part, shown as a'handwheel 78 fast thereon. and having M handle 79 thereon. An upright shaft 81 is arranged to be driven at selective speeds through suitable nests of gears, indicated at 80 and 82, and operated by means of a gear 83 in mesh with a gear 84 on the drillspindle, rotating with the gear 50.

Exemplifying the nests of gears'SO, 82, and the means for transmitting selective speeds to the upright shaft 81 thereby, the nest of gears 80 is exemplified as consisting of gears relatively loosely rotating about a bushing 131 journaled in bearings132 of the slide-frame] (See Figs. 5 and 7 The gear 83 is fixed to the bushing, the gears of the nest of gears 80 being selectively connected with the bushing by means of a key 133, arranged to be selectively received in slots 13 1, one of which is in each of said gears, the key passing through a slot 135 extending lengthwise of the bushing. The key is pivoted at 136 to an axially movable rod 137 and is urged into the slots of the gears. by means of a spring 138 secured to said rod.

The rod is provided with an annular rack 1 11 with which a pinion 1 12 meshes, the pinion being on a shaft 113 journaled in a bearing 11A in the slide-frame and having a handle 145 thereon for rotating the same, and thereby moving the rack axially. Kings 1416 are located about the bushing between proximate gears to cause disengagement of the key from a gear when the key is moved axially and to prevent engagement of the key with more than one gear at a time.

The selective speeds are indicated on a gage 1&8 rotating with the shaft 143, the markings on the gage being arranged to register with a pointer 1 19 fixed to the slideframe.

The gears of the nest of gears 82 are fixed to a shaft 151 journaled in bearings 152 in the slide-frame. A gear 153 is fixed to the shaft and meshes with a gear 154 fixed to the shaft 81.

The shaft 81 is journaled in a bearing 85 and is received in a bore 86 of the worm. A clutch 87 is located between the shaft and worm, exemplified as a tooth-clutch, the teeth of which are respectively on the worm and on a collar 88 having spline-connection 89 with the shaft 81. The collar is arranged to be moved axially on the shaft for engaging or disengaging the clutch by means of a fork 91, the tines of which are received in an annular groove 92 in said collar, the fork being on a rocker-rod 93 journaled in a bearing 94 of the tool-slide and having an operating arm 95 thereon.

In order to adjust the tool-slide laterally on the drill-arm, I provide the dr'ilLarm with a rack 101 extending lengthwise thereof, engaged by a pinion 102 on a shaft 103 oui'naled in a bearing 104 on the tool-slide and meshed by a pinion 105 fast on a shaft 106 journaled in bearings 107 on the toolslide. A worm wheel 108 is fast on said shaft. A worm 109 meshes with the wormwheel and is ar anged to be rotated in opposite directions for adjusting the tool-slide laterally in reverse directions on the drillarm. It may rotate in an oil-cup 100. The worm 109 is on a cross-shaft 110, which extends transversely of the tool-slide and has a manual manipulating operating part at each side of said tool-slide, one of these operating parts being for the purpose of quick or extended lateral movement of the tool-slide on the drill-arm, and the other of said parts being for the purpose of slight and accurate lateral adjustments of said tool-slide.

The first of these adjusting parts is exemplified at the right-hand end of said cross-shaft as a hand-wheel 111, having a handle 112 thereon to form a crank-wheel, whereby the operator, whose position is in front of the tool-spindle, as at a, may operate the hand-wheel 111 with his right hand for quick lateral adjustments. The other of these ope 'ating partsis exemplified as a hand-wheel 115 at the left-hand endof said cross-shaft, whereby the operator may accomplish lateral adjustment of the toolspindle by means of his left hand, this hand-wheel being preferably Without a handle so that the hand of the operator may slide about the same or grasp the same at any desired point in its circumference.

The cross-shaft is exemplified as journaled in bearings 116, 1.17, on the tool-slide. The bearing 11'? is instanced as comprising a bushing 118 secured in the tool-slide, and having end-thrust bearings 119, 120, between said bushing and a shoulder 121 on said shaft at one end. of'said bushing and the hub of the hand-wheel 111 at the other end of said bushing. Said hub has spline-connection 122 with said shaft, an adjusting nut 123 threaded to the end of said shaft adj usting said bearings.

The end-thrust bearings, e 'npliiied as ball-bearings, afford ease of rotation of the shaft and prevent endwise play of the she t,

causing transference of all rot "y motion of the shaft into crossadjustment of tl e spindle.

In operation, if the operator desires to ad just the point 31 of the drill into cooperative relation with a point, exemplified as the point of intersection. of the lines of the mark 6 in Fig. 6, said lastnametl point l r usually by a prick-punch work, and assuming that the tool-s distanced laterally to considerable extentfrom said work, the operator will emrlo his right hand for rotating the hand-wheel 111 by means of the handle 112 thereon.

whereby he obtains rapid lateral tr verse movement of the tool-shoe on the dri arm for proximate relation between the drill and the point of application on the work. Having thus obtained approximate position of the tool-slide, the perator, who is at the operators position a, operates the handwheel 78 with his right han for c .ing descent of the drill, and. the operator imulemplified by the dotted line 0 in Fig. 5, toward the point oli application on the work, the plane 01 ich is instanced by the dotted line (1 in l 1 and and the operator, whose position is immediately in front of the drill-spindle when so manipulating the manual controls for the drill-spindle, has the atiou oi": the drill-point and the point oi its desired application to the work inmediatcly before his eyes, so that he can closely observe the ei-i'ect of his relative manamanipulations by his respective hands of the hand-whee controlling respectively the axial movement and the cross adjustment oi c drill, and can accurately acc erate, retarzil or stop either or both or"? said movements for obtaining the desired result.

'J'Ql e adjustment of the tool with relation to the work is thus quickly and accurately accomplished, and if it is desired, during said adjustment, to shift the position of the drill-arm, this is readily accomplished by exerting manual force upon the lmndwheels while rotating the same and in the desired direction for shifting the radial position of the drill-arm.

Having thus fully described my invention, what I claim new and desire to secure by Letters Patent, is:

I. In a drilling machine, the combination of a work-support, a tool-slide arranged for having a drilling tool secured thereon above said work-support, and means for laterally adjusting said tool-slide toward the right or sit for causing the point of said drilling tool to register with a given point on the work on said work-support, said means including a manual operating part at the right oi said tool-slide and a manual operating part at the left of said tool-slide for effecting said adjustments.

2. In a drilling machine, the combination of a drill-arm, guides extending lengthwise thereof, a tool-slide, a drillspindle thereon arranged for receiving a drill, means for laterally adjusting said tool-slide along said guides toward the right or left for workposition, said means including a manual r0- tatable operating part at the right of said tool-slide and a manual. rotatable operating part at the left of said tool-slide for effecting said lateral adjustments of said toolslide, and means for adjusting said drillspindle up and down comprising a manual rotatable operating part at the right of said tool-slide, and constructed and arranged whereby there is freedom of View of said drill between said last two named manual operating parts in a line of vision projected toward the point of said drill in a plane perpendicular to the vertical plane parallel with said guides in which said guides are located.

3. In a drilling machine, the combination of a tool-slide, a drill-spindle thereon,

a work-support under said drill-spindle, means for laterally adjusting said toolslide toward the right or left for workposition, and means tor adjusting said drillspindle up and down, said first-named means and said second named means each including a manual rotatable operating part on said tool-slide to the right of said drillspindle arranged for independent operation and. provided with a handle extending substantially parallel with its axis of rotation for continuous adjustments thereby, and said first-named means further including a manual operating part of wheel form to the left of said drill-spindle arranged for cooperation with said manual operating part of said second-named means for interrupted adjustmentsof said drill-spindle to adjust said drill-spindle to cause the point of the drill on said drill-spindle to move laterally and downwardly to coincide with a given point on the work on said worlrsupport;

l. In a radial drilling machine, the combination or" a column, radial drill-arm thereon adjustable to radial positions, a tool-slide, a drill-spindle thereon, worksupport under said drill-spindle, means for laterally adjusting said tool-slide to the right or left on said drill-arm for workposition, and means for adjusting said drillspindle up and down, said. first-named means and said. second-named means each including a manual rotatable operating part on said tool-side to the right of said drillspindle arranged for independent operation,

each of said manual rotatable operating parts orovided with a handle extending substantially parallel with its axis of rotation continuous adjustments thereby of said drill-spindle, said first-named means further including a manual rotatable operating part of wheel form to the left of said drillspindle aranged for coiiperation with said manual operating part of said second-named means for interrupted adjustments of said drill-spindle to cause the point of the drill on said drill-spindle to move laterally and downwardly to coincide with a given point on the work on said work-support, and said last-named two manual operating parts arranged by pressure thereon to shift said drill-arm to selective radial positions.

5. In a drilling machine, the combination of a drill-arm, a laterally adjustable slide thereon, a drill-spindle on said slide, a worlesupport under said drill-spindle manually controlled means for axially adjusting said drill-spindle comprising a manual operating part arranged on said slide on one side of said drill-spindle convenient to one hand of the operator of the machine, and manually controlled means for making adjustments of said slide comprising a manual operating part arranged on said slide at said last-named side of said drillspindle convenient to said last-named hand of the operator of the machine, and said last-named 111' ially controlled means comprising an additional manual. operating part for making adjustments of said slide arranged on said slide at the opposite side of said drill-spindle convenient to the other hand of the operator of the machine, said first-named manual operating part and i? last-n ned manual operating part 10- ed at opposite sides of said drill-spindle sin llit'l@()llS operation by both hands of the operator positioned in front of said drill-spindle.

6. In a drilling machine, the combination of. si averting arm, a tool-slide on said supporting a work-support under said tool-slide, guides between said tool-slide and said supporting arm ex ending lengthwise of said supporting arm, a drill-spindle jo'arnaled on said tool-slide, means for axially adjusting said drill-spindle on said tool-slide comprising a manual operating part at one side of said slide, a rack on said supporting arm parallel with said guides, a pinion on said slide engaging said rack for lateral adjusting of said slide on said arm, an operating shaft on said slide parallel with said guides having driving connection with said pinion, and a manual operating part at each end of said operating shaft for manually rotating said operating shaft from either end thereof, said last-named manual operating parts including a crank-wheel at that side of said slide at which said firstnamed manual operating part is located for continuous traverse movements of said slide, and a plain hand-wheel at the opposite side of said slide arranged to be grasped by the hand at various parts of its circumference for interrupted traverse adjustments of said slide in connection with simultaneous axial adjustments of said spindle, by oper ation of said plain hand vheel and said first-named manual operating part simultaneously by both hands of one operator, substantially as described.

7. In a drilling machine, the combination of a tool-slide, a support therefor, a laterally extending guide between said support and said tool-slide, a drill-spindle, a worksupport under said drill-spindle, means for adjusting said drillspindle up and down on said tool-slide, a, rotatable manual adjusting part at each side of said tool-slide at the respective sides of said drill-spindle for lateral adjustments of said tool-slide on said support by means of either of said rotatable manual adjusting parts, one of said rotatable manual adjustable parts provided with a handle extending substantially parallel with its axis of rotation, and a rotatable manual adjusting part on said tool-slide at one side of said drill-spindle for adjusting said drill-spindle up and down, and construrted and arranged whereby simultaneous adjustments are imported to said drillspindle above said worlbsupport simultaneously laterally and downwardly by means of one of said first-named rotatable manual adjusting parts and said last-named rotatable manual adjusting part at opposite sides of saiddrill-spindle to cause the pointof the drilling tool on said drill-spindle to oincide with given point on the work on said work-support to properly locate said drilling tool with relation to said work.

3. In a drilling machine, the combination of a work-support, a drill-arm, a guide extending lengthwise of said drill-arm, a toolslide above said work-support, a drill-spindle thereon arranged for receiving a drilling tool, means for laterally adjusting said tool-slide along said guide toward the right or left for work position, said means including a manual rotatable operating part on said tool-slide at the right of said drillspindle and a manual rotatable operating part on said tool-slide at the left of said drill-spindle for effecting said lateral ad justments of said tool-slide, said first-named manual rotatable operating part provided with a handle extending substantially parallel with its axis of rotation, and means for adjusting said drill-spindle up and down on said tool-slide comprising a manual rotatable operating part on said tool-slide at the right of said drill-spindle, and constructed and arranged whereby there is freedom of view of said drilling tool between said firstnamed manual rotatable operating part and said third-named manual rotatable operating part above said work-support in a line of vision projected toward the point of said drilling-tool in a plane perpendicular to the vertical plane parallel with said guide in which said guide is located.

9. In a drilling machine, the combination of a work-support, a tool-slide above said work-support, a laterally extending guide for said tool-slide, a drill-spindle on said tool-slide, a hand-wheel on said tool-slide at each side of said drill-spindle for adjusting said tool-slide laterally on said guide, and a hand-wheel on said tool-slide at one side of said drill-spindle for adjusting said drill-spindle up and down, and constructed and arranged for simultaneous manual rotations of one of said first-named handwheels and said last-named hand-wheel by the respective hands of the operator at opposite sides of said drill-spindle for adjustment of the point of the drilling tool on said drill-spindle laterally and downwardly to coincide with a given point on the work on said work-support.

10. In a drilling machine, the combination of a worlesupport, a tool-slide above said work-support, a laterally extending guide for said tool-slide, a drill-spindle on said tool-slide, a pair of hand-wheels on said tool-slide atone side of said drill-spindle respectively'for lateral adjustment of said tool-slide on said guide and for up and down adjustment of said drill-spindle, each of said hand-wheels provided with a handle extending substantially parallel to its axis of rotation, and a hand-wheelon said toolslide at the other side of said drill-spindle for lateral adjustment of said tool-slide on said guide arranged in conjunction with said iirstnamed hand-wheel for up and down adjustment of said drill-spindle to adjust the point of the drilling tool on said drillspindle in an inclined path laterally and downwardly to coincide with a given point on the work on said work-support.

11. In a drilling machine, the combination of a work-support, a tool-slide above said work-support, a laterally extending guide for said tool-slide, a drill-spindle on said tool-slide, a shaft on said tool-slide substantially parallel with said guide for lateral adjustments of said tool-slide on said guide, a hand-wheel at the end of said shaft at the left side of said drill-spindle when viewed looking toward the tool-slide from the operators position in front of the tool-slide, a manual rotatable operating part provided with a handle extending substantially parallel with its axis of rotation at the end of said. shaft at the right side of said drill-spindle, and a manual rotatable operating part provided with a handle extending substantially parallel with its axis of rotation on said tool-slide at the right side of said drill-spindle, substantially for the purposes described.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

AUGUSTUS M. SOSA.

Witnesses ALBERT L. JENNINGS, ALLEN A. EDWARDS. 

